Delta Air Lines DL639 Flight Status
According to Trip.com latest record on status for Delta Air Lines flight DL639 from Los Angeles to Boston (LAX-BOS): Flights for Sep 22, 2026 are scheduled, with the next departure slated for 06:40 from LAX and an expected arrival at 14:35 at BOS .
Mon, Sep 21
Tue, Sep 22
Wed, Sep 23
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Arrived
The flight arrived 14m late.
5h 34m
Check-in Counter
--
Boarding Gate
37A
Arrival Gate
A19
Baggage
3
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Scheduled
Your flight will depart on time.
5h 34m
Check-in Counter
--
Boarding Gate
37A
Arrival Gate
A19
Baggage
3
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Scheduled
Your flight will depart on time.
5h 34m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
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DL639
DL639 Aircraft Specifications
According to Trip.com real-time data, the DL639 flight from Los Angeles to Boston on 9/22/2026 is operated using the aircraft model Boeing 757-200. This aircraft has been in service for 29y, 4m. The aircraft has 168 seats.
Boeing 757-200
On-Time Departure
83%
On-Time Arrival
97%
Avg. Early
13 minutes
Aircraft Age
29y, 4m
Total Seats
168
Flight Distance
--
Economy
Business
First
Premium Economy
Cabin Amenities
None
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
--
Legroom
44 cm
Seat width better than on 38% of flights
100°
Reclining Angle
3-3
Seat layout example
Cabin Amenities
Meal included
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
Cabin Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
193 cm
More legroom than on 82% of flights
48 cm
Seat width
180°
Reclining Angle Fully reclinable
2-2
Seat layout example
Cabin Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
89 cm
More legroom than on 38% of flights
44 cm
Seat width better than on 27% of flights
120°
Reclining Angle
3-3
Seat layout example
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DL639 Flight History
Trip.com historical records show that the last DL639 flight departed on Mon, Sep 21 from LAX at approximately 07:46. This flight is expected to arrrive in BOS at 15:28.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Thu, Sep 17 | Los Angeles (LAX) | Boston (BOS) | 752 | 07:28 | 15:32 | Arrived |
| Fri, Sep 18 | Los Angeles (LAX) | Boston (BOS) | 752 | 06:46 | 14:55 | Arrived |
| Sat, Sep 19 | Los Angeles (LAX) | Boston (BOS) | 752 | 06:49 | 14:51 | Arrived |
| Sun, Sep 20 | Los Angeles (LAX) | Boston (BOS) | 752 | 07:05 | 15:07 | Arrived |
| Mon, Sep 21 | Los Angeles (LAX) | Boston (BOS) | 752 | 07:46 | 15:28 | Arrived |
| Tue, Sep 22 | Los Angeles (LAX) | Boston (BOS) | 752 | 06:40 | 14:35 | Scheduled |
| Wed, Sep 23 | Los Angeles (LAX) | Boston (BOS) | 752 | 06:40 | 15:14 | Scheduled |
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DL639 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of DL639 is 83% (Late on average 21 minutes), and the on-time arrival rate is 97% (Early on average 13 minutes).
On-Time Departures
Punctuality
83%
Late on average 21 minutes
Early
0%
On time
83%
30 mins late
7%
60 mins late
10%
90 mins late
0%
Cancelled
0%
On-Time Arrivals
Punctuality
97%
Early on average 13 minutes
Early
83%
On time
13%
30 mins late
3%
60 mins late
0%
90 mins late
0%
Cancelled
0%
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Flight FAQs
What is the current status of flight dl639?
Flight dl639 has not departed yet and is currently on schedule. Scheduled departure 06:40, arrival 15:14 (updated Sep 22, 2026).Is flight dl639 on time today?
Flight dl639 has not departed yet and is currently on schedule. Scheduled departure is 06:40, with arrival at 15:14. Recheck gate and timing before you head to the airport.Has flight dl639 departed yet? What is the departure time?
Flight dl639 is scheduled to depart at 06:40. The latest actual or estimated departure time is 06:40, and the current status is Scheduled (updated Sep 22, 2026).When is flight dl639 scheduled to arrive?
Flight dl639 is scheduled to arrive at 15:14. The latest estimated or actual arrival time is 14:35. Status is Scheduled as of Sep 22, 2026.What is the gate information for flight dl639?
For flight dl639, the departure terminal is T3 and the boarding gate is 37A. Gate assignments can change at short notice—confirm on airport screens before heading to security.What is the baggage carousel number for flight dl639?
After arrival, baggage for flight dl639 is expected at carousel 3 in terminal A. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight dl639 fly?
Flight dl639 is operated by Delta Air Lines from Los Angeles (LAX) to Boston (BOS). Typical flight time is about 5 hours 34 minutes; operating days may include Tuesday.How can I check real-time status for flight dl639?
Track flight dl639 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight dl639 is delayed or canceled, what should I do?
If dl639 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 22, 2026). Contact Delta Air Lines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight dl639 departed from Los Angeles?
Flight dl639 has not departed from Los Angeles (LAX) yet and is currently on schedule for 06:40.What is the seat configuration for flight dl639?
Flight dl639 usually flies a Boeing 757-200 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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